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author | midipix <writeonce@midipix.org> | 2020-01-27 08:36:51 -0500 |
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committer | midipix <writeonce@midipix.org> | 2020-05-23 05:59:01 +0000 |
commit | 88751e9e5ee3726b8a6987aeaae04e956c2234f5 (patch) | |
tree | 1ba3549be38e7a9348ad5b48bb35869e3e733daa /src/internal/tpax_readlink_impl.h | |
parent | fa6b3e3522edcd8c202669c5587f2b5c77ac150d (diff) | |
download | tpax-88751e9e5ee3726b8a6987aeaae04e956c2234f5.tar.bz2 tpax-88751e9e5ee3726b8a6987aeaae04e956c2234f5.tar.xz |
created lib-app skeleton (foss21.org lib-app model).
Diffstat (limited to 'src/internal/tpax_readlink_impl.h')
-rw-r--r-- | src/internal/tpax_readlink_impl.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/internal/tpax_readlink_impl.h b/src/internal/tpax_readlink_impl.h new file mode 100644 index 0000000..328b302 --- /dev/null +++ b/src/internal/tpax_readlink_impl.h @@ -0,0 +1,31 @@ +/******************************************************/ +/* tpax: a topological pax implementation */ +/* Copyright (C) 2020 Z. Gilboa */ +/* Released under GPLv2 and GPLv3; see COPYING.TPAX. */ +/******************************************************/ + +#ifndef TPAX_READLINK_IMPL_H +#define TPAX_READLINK_IMPL_H + +#include <unistd.h> +#include <errno.h> + +static inline int tpax_readlink( + const char * restrict path, + char * restrict buf, + ssize_t bufsize) +{ + ssize_t ret; + + if ((ret = readlink(path,buf,bufsize)) <= 0) { + return -1; + } else if (ret == bufsize) { + errno = ENOBUFS; + return -1; + } else { + buf[ret] = 0; + return 0; + } +} + +#endif |